Through double-helix electric heating wire
Through the design of Zhongtong's double-helical heating wire, the problem of space, energy and material waste caused by the connection position of the single-helical heating wire and the power cord is solved, and efficient heating and flexible wiring of the heating wire are achieved.
Patent Information
- Application Number
- CN202421125470.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-22
- Publication Date
- 2025-01-21
- Estimated Expiration
- 2034-05-22
AI Technical Summary
The connection location of Zhongtong's single spiral electric heating wire and the power supply wire is located at both ends of the spiral wire, resulting in waste of space, energy and materials.
A double-helical electric heating wire with a central passage is designed. The heating wire body is composed of the bottom, middle and upper parts connected in sequence. The bottom is a U-shaped folded end for fixing on the outer circle of the part to be heated. The middle part is a double-helical structure with a central connection. hole, the upper part is for the two lead wires connected to the power cord.
It realizes the single-end wiring of the heating wire without generating redundant length of the heating wire, reducing the waste of space, energy and materials, and the heating wire can effectively heat the parts.
Smart Images
Figure CN222381815U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of electric heating elements, in particular to a centrally-through double-helix electric heating wire. Background Art
[0002] At present, when heating the outside of tubular or rod-shaped parts, it is often necessary to wind the heating wire into a single spiral wire structure with a central passage. When the central passage single spiral wire is connected to a power cord, the single spiral wire needs to be extended to ensure the safety of the power cord. This extension is a waste of space, energy and materials, namely: (1) the extension of the single spiral wire increases the space of the heating structure; (2) the heat generated by the extension wire is not effectively utilized; (3) the extension wire material is not used to heat the parts. Utility Model Content
[0003] The utility model aims to make up for the deficiencies of the prior art and to provide a centrally connected double-helix heating wire to solve the problem of waste of space, energy and materials caused by the connection positions between the centrally connected single-helix heating wire and the power line being located at both ends of the helix.
[0004] The purpose of this utility model is achieved through the following technical means:
[0005] A centrally-through double-helix electric heating wire comprises a heating wire body, characterized in that the heating wire body is formed by sequentially connecting a bottom portion, a middle portion and an upper portion, the bottom portion of the heating wire body is a U-shaped folded end for fixing on the outer circumference of a part to be heated, the middle portion of the heating wire body is wound into a centrally-through double-helix structure, the center of the double-helix structure has a central through hole for penetrating and inserting the part to be heated, and the upper portion of the heating wire body is two lead-out wires for connecting a power line.
[0006] Moreover, the heating wire body is an integrated structure formed by bending and folding a heating wire in the middle and winding it.
[0007] Moreover, the upper end of the U-shaped folded end is connected to the lower end of the double helix structure.
[0008] Moreover, the double helix structure is left-handed or right-handed with an upward angle.
[0009] Moreover, the upper end of the double helix structure is connected to the lower ends of the two lead-out wires, the upper ends of the two lead-out wires are free ends, and the two free ends extend out of the double helix structure.
[0010] Furthermore, the two free ends extend out of the double helix structure in the form of same-side leads or opposite-side leads.
[0011] The advantages and positive effects of the utility model are:
[0012] 1. The utility model is a double-helix heating wire with a reasonable design, practical structure, and flexible and convenient use. The connection terminal of the newly designed double-helix heating wire is located on one side of the spiral structure, which is convenient for connecting the power line. The U-shaped folded end is fixed to the outer circle of the part to be heated. The heating wire can be installed on the outside of tubular and rod-shaped parts, and the inside of the heating wire can pass through and insert the part to be heated.
[0013] 2. This structure can realize single-end wiring of the heating wire without generating redundant length of the heating wire. Therefore, this double-helix heating wire can solve the problem that the connection positions of the single-helix heating wire and the power cord are located at both ends of the helix wire, thereby reducing the waste of space, energy and materials. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is the front view of the utility model (leads on the same side);
[0015] Figure 2 yes Figure 1 A top view of
[0016] Figure 3 This is the front view of the utility model (lead on the opposite side);
[0017] Figure 4 yes Figure 3 Top view of the . DETAILED DESCRIPTION
[0018] An embodiment of the present utility model is described in detail below in conjunction with the accompanying drawings. It should be noted that this embodiment is descriptive and not restrictive, and the protection scope of the present utility model cannot be limited thereto.
[0019] A double-helix electric heating wire with a central hole includes a heating wire body, which is formed by sequentially connecting a bottom, a middle part and an upper part. The bottom of the heating wire body is a U-shaped folded end 3, and the U-shaped folded end is used to be fixed on the outer circle of a part to be heated. The middle part of the heating wire body is wound into a central double-helix structure 2, that is, the center of the double-helix structure has a central through hole 4, and the central through hole (central hole) can be used to penetrate and insert the part to be heated or a mold of the same shape. The central double-helix structure is left-handed or right-handed with an upward angle. The upper part of the heating wire body is two lead wires 1 for connecting a power line.
[0020] As shown in the accompanying drawings, the heating wire body is an integrated structure formed by bending and folding a heating wire in the middle and winding it. The upper end of the U-shaped folded end is connected to the lower end of the double helix structure, and the upper end of the double helix structure is connected to the lower ends of two lead wires. The upper ends of the two lead wires are free ends, and the two free ends extend out of the outside of the double helix structure. The two free ends extend out of the outside of the double helix structure by using the same-side lead wires or the opposite-side lead wires.
[0021] The manufacturing and use method of the double helix heating wire of this Zhongtong:
[0022] Bend the heating wire with measured length and resistance 180 degrees at a certain bending radius in the middle of the length;
[0023] The folded end is fixed to the outer circle of the part to be heated or the mold of the same shape, and the remaining part is rotated clockwise or counterclockwise at a certain angle to make the heating wire wind into a double helix structure;
[0024] The two free ends of the double helix heating wire extend out of the helix wire for a certain length and are processed into lead wires to connect the power cord; the length, direction and angle of the two lead wires of the double helix heating wire are not limited and can be the same or different. Figure 1 , 2 and attached Figure 3 , 4 There are two embodiments respectively.
Claims
1. A centrally-through double-helix heating wire, comprising a heating wire body, characterized in that: The heating wire body is composed of a bottom, a middle and an upper part connected in sequence. The bottom of the heating wire body is a U-shaped folded end for fixing on the outer circle of the part to be heated. The middle part of the heating wire body is wound into a double helix structure with a central through hole in the center for inserting the part to be heated. The upper part of the heating wire body is two lead wires for connecting the power cord.
2. The centrally-through double-helix heating wire according to claim 1, characterized in that: The heating wire body is an integrated structure formed by bending and folding a heating wire in the middle and winding it.
3. The centrally-through double-helix heating wire according to claim 1, characterized in that: The upper end of the U-shaped folded end is connected to the lower end of the double helix structure.
4. The centrally-through double-helix heating wire according to claim 1, characterized in that: The double helix structure is left-handed or right-handed with an upward angle.
5. The centrally-through double-helix heating wire according to claim 1, characterized in that: The upper end of the double helix structure is connected to the lower ends of the two lead-out lines, the upper ends of the two lead-out lines are free ends, and the two free ends extend out of the double helix structure.
6. The centrally-through double-helix heating wire according to claim 5, characterized in that: The two free ends extend out of the double helix structure in the manner of same-side leads or opposite-side leads.